ن ق ضn-q-ḍ
(ن) نَقَضَ يَنْقُضُ نَقْضًاnaqaḍa yanquḍu naqḍan: to break something that has been built, to untwist a rope; then, to break a covenant. ﴿وَلَا تَنْقُضُوا الْاَيْمَانَ بَعْدَ تَوْكِيْدِهَا﴾ (An-Naḥl 16:91); ﴿وَلَا تَكُوْنُوْا كَالَّتِيْ نَقَضَتْ غَزْلَهَا مِنْۢ بَعْدِ قُوَّةٍ اَنْكَاثًا﴾ (An-Naḥl 16:92)
Form IV (ifʿāl) اَنْقَضَ يُنْقِضُ اِنْقَاضًاanqaḍa yunqiḍu inqāḍan: to weigh down, to break the back (with a burden), i.e. to bring it close to breaking. Only once in the Quran: ﴿الَّذِيْٓ اَنْقَضَ ظَهْرَكَ﴾ (Ash-Sharḥ 94:3)
Form VI (tafāʿul) تَنَاقَضَ يَتَنَاقَضُ تَنَاقُضًاtanāqaḍa yatanāqaḍu tanāquḍan: (of two statements) to cancel each other out; to be mutually contradictory (this verb is not used in the Quran).